Microsoft has recently launched its “Click for the Cause” initiative, in which Internet searches performed at http://click4thecause.live.com,
using Microsoft’s Live Search, result in a financial donation to ninemillion.org, a UN Refugee agency-led public and private sector partnership which benefits the 9.3 million refugee children in the world.

From Steve Ballmer`s MS internal intro letter:
Did you know, for example, that we recycle 141 tons of material every month? That employees volunteered more than 76,000 hours last year? That we donated more than $2.5 billion to communities in the past 20 years?